Unsinkable Sam (nickname of a German ship's cat) who served on 3 warships, one German, two British, all sank in action. The cat survived each sinking, floating away on wooden planks to rescue.
19
The Basenji dog is the only dog that is not able to bark.
4
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Cats and dogs can hear ultrasound.
350